Finding the Fourth Proportional to 22,460.68, 30,996.57 and 12,389.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,460.68 : 30,996.57 = 12,389.50 : x
2. Step 2: Convert to fraction form
   22,460.68/30,996.57 = 12,389.50/x
3. Step 3: Cross multiply
   22,460.68x = 30,996.57 × 12,389.50
4. Step 4: Simplify right side
   22,460.68x = 384,032,004.02
5. Step 5: Solve for x
   x = 384,032,004.02/22,460.68
6. Step 6: Final answer
   x = 17,097.97